@alan-sh
File "Bookmarks" in Vivaldi user profile (or any Chromium based browser) is in (rather simple) JSON format. That file is one of few you could just copy-paste. In Vivaldi case, this also preserve nickname. Of course, this method if you're not worry to lost bookmarks on other system (PC).

Export bookmarks like @Pesala mentioned, is always the safest though. Personally I prefer this one than even Sync.

@alan-sh
File "Bookmarks" in Vivaldi user profile (or any Chromium based browser) is in (rather simple) JSON format. That file is one of few you could just copy-paste. In Vivaldi case, this also preserve nickname. Of course, this method if you're not worry to lost bookmarks on other system (PC).

Export bookmarks like @Pesala mentioned, is always the safest though. Personally I prefer this one than even Sync.

If Vivaldi could let me store bookmarks in MY location, then I could use Dropbox or similar and that would solve the issue. Maybe that's a quick way of doing sync?